<template>
  <view>
    <view class="goods-list">
      <view v-for="(item,i) in goodsList" :key="item.goods_id" @click="gotoDetail(item)">
       <my-goods :goods="item"></my-goods>
      </view>
    </view>
  </view>
</template>

<script>
  export default {
    data() {
      return {
        //请求参数对象
        queryObj:{
          //查询关键字
          query:'',
          //商品分类ID
          cid:'',
          //页码值
          pagenum:1,
          //每页显示多少条数据
          pagesize:10
        },
        //商品列表的数据
        goodsList:[],
        //总数量，
        total:0,
        //是否正在请求数据
        isloading:false
      };
    },
    //触底事件
    onReachBottom() {
      // 判断是否还有下一页数据
      if(this.queryObj.pagenum  * this.queryObj.pagesize >= this.total) return uni.$showMsg('数据加载完毕！')
      
       // 判断是否正在请求其它数据，如果是，则不发起额外的请求
       if(this.isloading) return
      //让页码加一
      this.queryObj.pagenum += 1
      
      //请求数据
      this.getGoodsList()
    },
    //下拉刷新事件
    onPullDownRefresh() {
      this.queryObj.pagenum = 1
      this.total = 0 
      this.isloading = false
      this.goodsList = []
      this.getGoodsList(()=>uni.stopPullDownRefresh())
    },
    onLoad(options) {
      //将页面参数转存到data中
      this.queryObj.query = options.query || ''
      this.queryObj.cid = options.cid || ''
      //调用获取商品数据的方法
      this.getGoodsList()
    },
    methods:{
      //获取商品数据
      async getGoodsList(cb){
        this.isloading = true
        const {data:res} = await uni.$http.get('/api/public/v1/goods/search',this.queryObj)
        this.isloading = false
        cb && cb()
        
        if(res.meta.status !== 200)return uni.$showMsg()
        this.goodsList = [...this.goodsList,...res.message.goods]
        this.total = res.message.total
        
      },
      //跳转商品详情
      gotoDetail(item){
        console.log(item);
        uni.navigateTo({
          url:'/subpkg/goods_detail/goods_detail?goods_id=' + item.goods_id
        })
      }
    }
  }
</script>

<style lang="scss">

</style>
